128576-55-6

Upstream product

• 128657-46-5 (4S,5R)-4-carboxy-5-benzylimidazolidin-2-one 
• 128576-59-0 (4S,5S)-4-carboxy-5-benzylimidazolidin-2-one 
• 128576-58-9 (4S,5S)-5-(tert-butoxycarbonyl)-1-(9-phenylfluoren-9-yl)-4-benzylimidazolidin-2-one 
• 128576-69-2 (4S,5S)-4-benzyl-1,5-bis(tert-butoxycarbonyl)-imidazolidin-2-one 
• 128657-45-4 (4R,5S)-5-(tert-butoxycarbonyl)-1-(9-phenylfluoren-9-yl)-4-benzylimidazolidin-2-one 
• 128576-80-7 (4R,5S)-4-benzyl-5-(methoxycarbonyl)-1-(9-phenylfluoren-9-yl)imidazolidin-2-one 
• 128576-81-8 (4R,5S)-4-benzyl-5-carboxy-1-(9-phenylfluoren-9-yl)-imidazolidin-2-one 

Relevant academic research and scientific papers

Catalytic asymmetric diamination of conjugated dienes and triene

This paper describes a catalytic asymmetric diamination process using di-tert-butyldiaziridinone as nitrogen source with catalyst generated from Pd2(dba)3 and chiral phosphorus amidite ligand. A wide variety of conjugated dienes and

Stereoselective Synthesis of 2,3-Diamino Acids. 2,3-Diamino-4-phenylbutanoic Acid

The synthesis of (2S,3S)- and (2S,3R)-2,3-diamino-4-phenylbutanoic acid (1c and 3) from L-aspartic acid is described.The N-(phenylfluorenyl)-protected aspartic acid diesters 4 and 10 (α-tert-butyl, β-methyl), 18 (β-benzyl, α-tert-butyl), and 28 (β-benzyl,